A CASE OF DIPLOPIA AFTER RETROBULBAR ANESTHESIA FOR CATARACT OPERATION

A case report A homolateral hypertropia accompanied by diplopia occured after retrobulbar anesthesia for cataract operation. In the course of the next few months a hypotropia developed in the same eye. Two and a half years later a 5 mm recession of the inferior rectus muscle of the hypotropic eye was performed under local anesthesia. The passive motility upwards improved already during the operation when the muscle was sectioned. After the operation there was a remarkable improvement of motility and field of vision. Conclusion The cause of this diplopia is probably an injury of the inferior rectus muscle with a secondary contraction caused by the retrobulbar anesthesia. An injection along the inferior rectus muscle to achieve the retrobulbar anesthesia should be avoided.